Switch



Nov. 5, 1935. G. J. REISINGER. JR 2,020,213

SWITCH Filed July 9, 1931 Inventor A l Q flltomey Patented Nov. 1935 UNITED STATES PATENT OFFICE hmizlh I George J. W, Jr Schenectady- {N- Y. mum Jill, 9,1931, N0. "5753 3 Claims. (01. 2M7) closed circuits, such'as normally circuits, and an important object vention is to provide a-simple and eiilcircuit.

Other objects and advantages oi-mv inventionwillbeapparent-iromareadingotthetolwherein i'or PM oi illmtration I-have looking toward the right.

Belem-ring in detail to the drawing the'numeral llretersgenerallytoasuitableflatbaseonone side oi which near one end is fastened the electro-magnethsvingtheprotrudingcore II which isinmagneticrelationtothemagnetically permea'ble button ll on theiree end 01 the arm ll whiohisoispring metalandhas its opposite end lying along the top of and fastened to the generally semi-circular band or clamp I which embraces the middle part oi a horizontally elongated closed endglass or similar material tube l2 In which contains a quantity oi mercury 52 and has projecting upwardly irom its bottom near the right hand 'end thereof the pa r of spaced relates generally to switches for f consequent upon a break in the posts it on theladiacent end of the throughthelower portion oithe 'supports (I sndll'lsthehorisontalpartllot ii theresettingdevice ",whichhasonitsupper endthe horizontalextension ilandonitsopposite endthe operating knob ll. Astop islocatedonthe'supportllabovethescrewl and insuch apositlon thattheresetting device I0 come deenerglsed due'toabreakin thealarmli netllisconnecteth v 1 4 In resetting the switch ironrthe open position shownin Figure 2, the-knoh is grasped and rotated'coimter-clockwise until the arm n rests againstthe underside of the arm II, the counter-; clockwise rotation of the resetting device will then be continued until the magnetic button ll on the free end of the arm llhasbeenengagedwith'thecore 01' the electromagnet, whereupon is .arm andhencethetubeflwillbeheldintheclosed left-hand tilted position shown in Figure 1 wherein the quantity oi mercury 52 will be in the lefthand end of the tube and entirely out of bridging relation to the contacts Ii in the opposite end of the tube, so that the alarm-device or signal will be in a deenergized condition. 7 Although I have shown and described herein a preferred embodiment of my invention, it is to be definitely understood that I do not desire to limit 45 the application of the invention thereto, and any change or changes may be made in the materials and in the structure and arrangement 01' the parts, within the-spirit oi the invention and the scope of the subioihed claims. Having thus described my invention, what 7 claim as new is:'- V

y 1. An electromagneticalb operated switch comprisingasupport, agenerallyhorisontellyelom gatedtubepivotednealritsmicidleonsa-idsupport, a quantity of conductive fluid movably containedby said tube, a pair or contacts within one end only or said tube and arranged to be bridged by said conductive fluid while the said end of the g tube'is depressed below the horizontal andwhile the opposite end of the tube is elevated above the horizontal, spring means connected between said support and said tube and normally rotatably urging said tube toward operated position in 10 which the said one end of the tube is depressed, an arm flx'ed to said tube adjacent its said middle and projecting longitudinally along and above said tube'and beyond the said opposite end thereof, a resetting member pivoted on said support 15 and having a part transversely overlying said am and engageable with the upper side of said arm, said resetting member being arranged to be swung to bring said part down on said arm to rock said arm and said tube from said operative position 20 to the set position in which said oppodte end of the tube is depressed and said one end thereof elevated with respect to the horizontal and said fluid is out of bridging relation to said pair of contacts, and electromagnetic holding means as holding said arm in the set position, said electro- 4 magnetic means being arranged to release said arm upon a change of magnetic flux to permit said spring means to operate said tubeinto the operated position. I

so 2. An electromagnetically operated switch comprising a support, a generally horizontally elongated tube pivoted near its middle on said support, a quantity ot conductive fluid movably contained by said tube, a pair ot contacts within one as end only of said tube and arranged to be bridged by said conductive fluid while the said end of the tube is depressed below the horizontal and while the opponte end of the tube is elevated'above r the horizontal, spring means connected between 0' said support and said tube and normally rotataly urging said tube toward operated position in which thesaid one end or the tube is depressed,

an armflxed to said tube adjacent its said middie and projecting longitudinally along and above 45 said tube and beyond the'said opposite end thereoi, a resetting member pivoted on said support and having a part transversely overlying said' arm and engageable with the upper side of said arm, said resettingmember being arranged to so beswimgtobringsaidpartdownon'saidarmto rocksaidarmandsaidtubeirunsaidope'rative position to theset position which said oppositeendoi' thetubeisdeprsuedandsaid one end thereof elevated with respect to the hurlzontalandsaidfluidisoutoibridgingrelation to said pair 01' contacts, and electromagnetic holding means holding said arm in the set position, said electro-magnet meansbeing arranged to g releasesaidarmuponacnangeoimagnetic flux, to permit said spring means to operate said tube into the operated position, said arm having a magnetizable element, and said electro'-magnetic holding means including an electromagnet having 10 a core element with which said magnetizable elementisarrangedtoengageinthesetposition 0! said arm and said tube.

3. An electromagnetically operated switch comprising a support, a generally horizontally elon- 1g gated tube pivoted near its middle on said support, a quantity 0! conductive fluid movably contained by said tube, a pair ot contacts within one end only of said tubeand arranged to be bridged by said conductive fluid while the said end 01' the go tube is depressed below the horizontal and while the opposite end or the tube is elevated above the horizontal, spring connected between said support and said tube and normally rotatabiy urging said tube toward operated positionin which the said one end of the tube is depressed,

podtion in which said opposite end of is depressed and saidone end-thereod with respect to the horizontal and said out i bridging relationto said pair oiand electromagnetic holding means 4 arminthesetpositiomsaidelectrw, eticmeansbeingarrangedtoreleasesaid a change otmagnetic flux to permit means tooperate said'tube into the including a member flexibly mounted adiaend "555 5 egg E gs? otsaidarmandhavinganotch 'receivingandholdingsaidireeendoi toretainthearm'andsaidtubeinthcset ,andelectromagnet means fol-flexing member to release said arm. GIORGI RIISINGIR Js.

said electromagnetic holding]; 

